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| author | Jan Kara <jack@suse.cz> | 2017-06-08 15:48:16 +0200 |
|---|---|---|
| committer | Jan Kara <jack@suse.cz> | 2017-08-17 19:03:09 +0200 |
| commit | 8fc32c2b0db2c9ee0dffebea65bcdea03a29ba5a (patch) | |
| tree | 1ad92b623f562ac9f160fb4ea8e4c9073d2cb4f5 /fs/quota/quota_v1.c | |
| parent | quota: Remove locking for reading from the old quota format (diff) | |
| download | linux-8fc32c2b0db2c9ee0dffebea65bcdea03a29ba5a.tar.xz linux-8fc32c2b0db2c9ee0dffebea65bcdea03a29ba5a.zip | |
quota: Push dqio_sem down to ->write_dqblk()
Push down acquisition of dqio_sem into ->write_dqblk() callback. It will
allow quota formats to decide whether they need it or not.
Reviewed-by: Andreas Dilger <adilger@dilger.ca>
Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/quota/quota_v1.c')
| -rw-r--r-- | fs/quota/quota_v1.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/quota/quota_v1.c b/fs/quota/quota_v1.c index 12d69cda57cc..94cceb76b9a3 100644 --- a/fs/quota/quota_v1.c +++ b/fs/quota/quota_v1.c @@ -83,7 +83,9 @@ static int v1_commit_dqblk(struct dquot *dquot) short type = dquot->dq_id.type; ssize_t ret; struct v1_disk_dqblk dqblk; + struct quota_info *dqopt = sb_dqopt(dquot->dq_sb); + down_write(&dqopt->dqio_sem); v1_mem2disk_dqblk(&dqblk, &dquot->dq_dqb); if (((type == USRQUOTA) && uid_eq(dquot->dq_id.uid, GLOBAL_ROOT_UID)) || ((type == GRPQUOTA) && gid_eq(dquot->dq_id.gid, GLOBAL_ROOT_GID))) { @@ -97,6 +99,7 @@ static int v1_commit_dqblk(struct dquot *dquot) ret = dquot->dq_sb->s_op->quota_write(dquot->dq_sb, type, (char *)&dqblk, sizeof(struct v1_disk_dqblk), v1_dqoff(from_kqid(&init_user_ns, dquot->dq_id))); + up_write(&dqopt->dqio_sem); if (ret != sizeof(struct v1_disk_dqblk)) { quota_error(dquot->dq_sb, "dquota write failed"); if (ret >= 0) |